Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/82-14 | 225/78-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.94 (659) | 27.82 (706.6) | 1.87 (47.6) 7.2% |
| Width inches (mm) | 7.28 (185) | 8.86 (225) | 1.57 (40) 21.6% |
| Circum. inches (mm) | 81.51 (2070.31) | 87.4 (2219.85) | 5.89 (149.54) 7.2% |
| Sidewall Height inches (mm) | 5.97 (151.7) | 6.91 (175.5) | 0.94 (23.8) 15.7% |
| Revolutions per mile (km) | 777.34 (483.02) | 724.98 (450.48) | -52.37 (-32.54) -6.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.44 mph (34.51 km/h) |
| 25 mph (40.23 km/h) | 26.81 mph (43.14 km/h) |
| 30 mph (48.28 km/h) | 32.17 mph (51.77 km/h) |
| 35 mph (56.33 km/h) | 37.53 mph (60.4 km/h) |
| 40 mph (64.37 km/h) | 42.89 mph (69.02 km/h) |
| 45 mph (72.42 km/h) | 48.25 mph (77.65 km/h) |
| 50 mph (80.47 km/h) | 53.61 mph (86.28 km/h) |
| 55 mph (88.51 km/h) | 58.97 mph (94.91 km/h) |
| 60 mph (96.56 km/h) | 64.33 mph (103.54 km/h) |
| 65 mph (104.61 km/h) | 69.69 mph (112.16 km/h) |
| 70 mph (112.65 km/h) | 75.06 mph (120.79 km/h) |
| 75 mph (120.7 km/h) | 80.42 mph (129.42 km/h) |
| 80 mph (128.75 km/h) | 85.78 mph (138.05 km/h) |
| 85 mph (136.79 km/h) | 91.14 mph (146.68 km/h) |
| 90 mph (144.84 km/h) | 96.5 mph (155.3 km/h) |
| 95 mph (152.89 km/h) | 101.86 mph (163.93 km/h) |
| 100 mph (160.93 km/h) | 107.22 mph (172.56 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1845 | 2143 | 2308 | 2410 | 2520 | 2599 | 2685 | 2787 | 2928 | 3070 | 3227 | 3352 | 3580 | 3831 | 4027 | 4153 | 4224 | 4483 | 4844 | 5629 |
Better Fuel Economy Factory Ratios Increased Power
